No. 4
Originally built for Mundstock, registered as PE-S 4, later owned by Oberland Tours (& maybe others).Now converted by Treiberhilfe who use it to help the homeless in germany. See: http://www.treberhilfe-dresden.de
Can be seen on Google Maps at:
http://tinyurl.com/22mgkr
No. 5
The second for TRD of Dortmund, registered as DO-RD 2. Was apparently located somewhere in Russia for about 8 years where it was apparently owned by a coach company called Meyta in Kiev.
Returned to Germany (approx 2000) and is now operating as a shuttle bus at a U-boat museum in Rugen Germany.
UPDATE: Recently advertised for sale at www.mobile.de
The slogan on the side translates as "With the largest coach to the largest u-boat"
No. 6
Car-o-tel Hotel bus:
There are a number of posts/articles on the Yahoo groups regarding the history and whereabouts of this vehicle.
The whereabouts of the Car-o-tel have become known in 2005 and it changed hands, the new owner from Florida is curently restoring the Coach.
Manuel Nauta, son of Fred, who comissioned the Car-o-tel in 1977 maintains the following website:
http://www.car-o-tel.com